Ылттăн тӳркĕтеслĕх
Ылттăн тÿркĕтеслех — енĕсем ылттăн пропорцилле шайлашури  тӳркĕтеслĕх,  , е  (фи грек саспаллийĕ), кунта фи çавракалатсан  1,618 хисеппе тан.

Вуламалли 
Edward B. Burger, Michael P. Starbird. The Heart of Mathematics: An Invitation to Effective Thinking. — Springer, 2005. — ISBN 9781931914413.
Mario Livio. The Golden Ratio: The Story of Phi, The World's Most Astonishing Number. — New York: Broadway Books, 2002. — ISBN 0-7679-0815-5.
Audrey M. Van Mersbergen. Rhetorical Prototypes in Architecture: Measuring the Acropolis with a Philosophical Polemic // Communication Quarterly. — 1998. — Т. 46. 'Golden Rectangle' has a ratio of the length of its sides equal to 1:1.61803+. The Parthenon is of these dimensions.
Le Corbusier. The Modulor. — С. 35., как цитировано у Падована Richard Padovan. Proportion: Science, Philosophy, Architecture. — Taylor & Francis, 1999. — С. 320. — ISBN 0-419-22780-6.: "Both the paintings and the architectural designs make use of the golden section".

Каçăсем
 Golden Ratio at MathWorld
 The Golden Mean and the Physics of Aesthetics
 Golden rectangle demonstration With interactive animation

Тăваткĕтеслĕхсем
Ылттăн касăлу